Low Impact building

The straw bale and timber framed shower block at The Sustainability Centre is located on the campsite, for people staying in our yurts or their own tents. It has two shower cubicles and one fully accessible wet room. There are also washing-up sinks and a hand basin.

Straw bale construction is a method of building that uses straw as a structural building material, or as insulation, or both. In this case, the structure is non-load bearing with a timber frame. Straw has several advantages: it is cheap, readily available, renewable and highly insulating.

We sourced the wheat straw bales for this building from the farm next door. The straw has been lime rendered for weather-proofing. Lime is a traditional, natural building material and has a much lower embodied energy than modern cement renders.

The timber frame of the building is made from low-grade softwoods sourced within five miles of The Sustainability Centre. The roof is made from locally sourced cleft chestnut shingles. The shingles were made on site by a local coppice worker and his apprentices.

The foundations of the building are designed to have a light touch on the earth. The building rests on piles made from recycled tyres filled with rammed chalk from the site. This means that the 'footprint' of the building is minimal.

The water soaks away into a French drain filled with recycled tyre chippings. Finding creative uses for old tyres is important as they pose a significant waste problem. They are designed to be hard wearing, weather proof and don't degrade easily. They can also be hazardous if they catch fire; a fire in Wales in a dump of 10 million tyres burned for a staggering nine years and produced vast quantities of harmful emissions.

​The Belfast sinks and teak draining boards have been reclaimed from our derelict accommodation building.

The original plan for the showers was to harvest rainwater from the hostel roof, but this eventually proved to be outside of our budget.